Total Organic Carbon (TOC) Analyzers

Why TOC Analysis, Testing and Measurement Matter to Water Quality

TOC analyzers measure the amount of organic compounds contained in a water sample. Organic carbon-containing compounds can either be dissolved in water or exist in water as undissolved, suspended material, or liquid. This organic matter can enter water naturally and through man-made sources/processes.

Examples of organic matter are plant or animal based or synthetic substances containing carbon and other elements defining organic compounds. Inorganic matter is comprised of mineral compounds that may or may not contain carbon.

Featured Total Organic Carbon Analyzers and Testing Products

Online TOC Analyzers

Our industry-leading TOC online analyzers are versatile and dependable instruments that serve a wide range of applications. Some key applications include monitoring boiler water, clean in place systems, cooling water, discharge, groundwater and many more. These analyzers provide accurate and reliable measurement of organic compounds in water, allowing for effective control and optimization of various water treatment processes.

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Laboratory TOC Meters

Achieve accurate, quick and reliable TOC measurement with our easy-to-use benchtop TOC meters. Whether you need to monitor potable water for compliance, ensure proper treatment of industrial wastewater, or protect membrane systems, Hach's TOC analyzers have you covered. Analyzers ideal for water quality professionals looking to monitor and control water treatment processes in a variety of applications including but not limited to: groundwater, industrial wastewater, municipal water, surface water, and more.

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Portable TOC Meters

Light, compact and rugged makes our portable instruments the best choice for on-the-go. Whether you need it for groundwater, membrane protection, municipal water or surface water, we have you covered.

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TOC Reagents, TOC Test Kits and Consumables

Hach's quality reagents and standards are specially formulated to work seamlessly with our TOC analyzers to provide accurate and reliable measurement in water samples. In addition, we also provide a wide range of TOC standards, including low-level and high-level providing you confidence in your results.

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Which Processes Require Total Organic Carbon Monitoring?

Determining the full TOC load before it enters the treatment facility allows the plant to prepare for treatment and optimize operation. Measuring the TOC discharge at the end of treatment helps ensure that the plant complies with regulations.

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A wastewater equalization tank is a good source to monitor full TOC load before it enters the treatment plant.

Frequently Asked Questions

While organic matter isn't necessarily toxic, high concentrations in water can significantly impact ecosystems and damage equipment when left unchecked and untreated.

Avoid Environmental Consequences

Organics can be toxic to the environment in rivers or streams, even if the compounds themselves are not directly toxic. By depleting oxygen levels in water, organic waste can lead to fish suffocation and can affect water ecosystems in many other ways.

Ensure Compliance with Regulations

Organic compounds are precursors for disinfection by-products (DBP), which are strictly regulated in the drinking water industry. Measuring TOC makes it possible to implement the right treatment to reduce the formation of DBP to comply with the regulatory requirements.

Industries and municipalities that do not properly monitor TOC may fail to comply with laws and regulations, incurring fees or fines. There are additional financial consequences for exceeding permit limits for discharge of organics.

Business Efficiency & Integrity

The unwanted organic compounds in products can have a detrimental effect on taste, odor, aesthetics and customers’ perceptions of quality. Excessive organic content in source water can influence the cost of production, cause contamination, result in charges for wastewater treatment, present challenges to meeting regulations and bring about negative environmental consequences that could harm the reputation of a business.

Wastewater Treatment

Abnormal and unexpected events can affect the organic load in the influent significantly. These events can disrupt or even be catastrophic to the treatment process. Monitoring TOC in wastewater influent and effluent can allow the plant to manage the treatment process efficiently, redirect the water as needed for retention and additional treatment, and avoid violations of the discharge regulations.

At Hach^®, find the testing equipment, resources, training and software you need to successfully monitor and manage TOC levels in your specific process application.